Tag: databases
Questions Related to databases
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DML trigger
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Invalid Trigger
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Application Trigger
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System Event trigger
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1
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10
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none
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Value equal to number of rows in EMP table
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we can use Application Trigger to fire when a DELETE statement occurs
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we can use database Trigger to fire when a INSERT statement occurs
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we can use System event Trigger to fire when a DELETE statement occurs
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we can use INSTEAD OF trigger to fire when a INSERT statement occurs
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DURING
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INSTEAD
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ON SHUTDOWN
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BEFORE
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Package
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Stored function
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Stored procedure
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Another DB trigger
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DELETE TRIGGER business_hour
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DROP TRIGGER business_hour
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REMOVE TRIGGER business_hour
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ALTER TRIGGER business_hour remove
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Row level DML trigger
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Statement level DML trigger
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System trigger
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Application Trigger
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ALTER TRIGGERS ON TABLE EMP DISABLE
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ALTER EMP DISABLE ALL TRIGGERS
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NOT POSSIBLE TO DISABLE TRIGGERS
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ALTER TABLE EMP DISABLE ALL TRIGGERS
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Full table scan
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Table access by ROWID
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Access via unique index
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Primary key access